Sehlopha sa sejoale-joale sa enjine ea likoloi se entsoe haholo ka 'mele, hlooho ea silinda, sekoaelo sa cylinder, cylinder liner, sekoaelo se ka sehloohong le pane ea oli. Kopano ea 'mele oa enjene ke bracket ea enjene, e leng matrix a kopano ea mochini o kopanyang oa crank, mochini oa ho tsamaisa li-valve, le likarolo tsa mantlha tsa sistimi ea enjene. Hlooho ea silinda e sebelisetsoa ho tiisa bokaholimo ba silinda le ho etsa kamore e tukang hammoho le moqhaka oa piston le lerako la silinda.

Hlooho ea silinda e sebelisetsoa ho tiisa silinda le ho theha kamore ea mollo. Hlooho ea silinda e entsoe ka baki ea metsi, lesoba le kenang, lesoba la ho tsoa, lesoba la spark plug, lesoba la bolt, kamore ea mollo, jj.

The cylinder block ke 'mele o ka sehloohong oa enjene, o kopanyang moqomo o mong le o mong le crankcase ka kakaretso. Ke moralo o tšehetsang oa ho kenya li-pistons, crankshafts, le likarolo tse ling le lisebelisoa.

The cylinder gasket e teng pakeng tsa hlooho ea cylinder le cylinder block, 'me mosebetsi oa eona ke ho tlatsa li-pores tse nyenyane pakeng tsa cylinder block le hlooho ea cylinder, ho netefatsa tiiso e ntle sebakeng se kopanetsoeng, kahoo ho tiisa ho tiisoa ha kamore ea mollo le ho thibela ho tsoa ha cylinder. le ho dutla baki ya metsi.

Sehlopha se kopanyang piston ke karolo ea phetisetso ea enjene, e fetisang khatello ea khase e tukang ho crankshaft, e etsa hore e potolohe le ho hlahisa matla. Sehlopha se kopanyang sa piston se entsoe haholo-holo ka piston, selikalikoe sa piston, piston pin le rod e kopanyang.

Mosebetsi o ka sehloohong oa piston ke ho mamella khatello ea khase e tukang le ho fetisetsa matla ana ho molamu o kopanyang ka piston ho khanna crankshaft ho potoloha. Ho feta moo, bokaholimo ba piston, hlooho ea silinda le lerako la silinda hammoho li theha kamore e tukang. Piston ke karolo e matla ka ho fetisisa enjeneng e tlas'a maemo a ts'ebetso, e nang le khase le matla a inertia a sebetsang ho eona.
Mosebetsi oa crankshaft ke ho fetola matla a khase a fetisoang ke piston le molamu o kopanyang hore e be torque, e sebelisetsoang ho khanna tsamaiso ea koloi, mochine oa ho tsamaisa valve oa enjene, le lisebelisoa tse ling tse thusang. Crankshaft e sebetsa tlas'a ketso e kopantsoeng ea liphetoho tsa nako le nako ho matla a khase, matla a inertia, le torque, 'me libere tse fapanyetsanang li kobeha le meroalo ea torsion.